I like the idea of a mission statement , summarizes the vision of your strategy you want to drive.
If you really want to make a difference you need to change the maintenance culture. Most companies i see have a reactive approach " When its broken ill fix it". This will lead to downtime on equipment malfunction that could have been avoided.
I reactive approach means regular maintenance inspections and a list of well identified spare parts. Standard work procedures also go a long way in optimizing your plant/factory's maintenance requirements.
Look into Preventative Maintenance techniques there is a world of knowledge that is very helpful.
Not to get too fat off topic, here is a mission statement i thought off.
"To adequately maintain the life-cycle of our assets and/or products by ensuring we have a SAFE,productive and cost effective work environment"